diff options
Diffstat (limited to 'drivers/i2c/i2c-core.c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 2151d0b353b3..a97f7a0b0d6e 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -697,7 +697,7 @@ static int i2c_device_match(struct device *dev, struct device_driver *drv) /* Attempt an OF style match */ - if (of_driver_match_device(dev, drv)) + if (i2c_of_match_device(drv->of_match_table, client)) return 1; /* Then ACPI style match */ @@ -923,7 +923,15 @@ static int i2c_device_probe(struct device *dev) } driver = to_i2c_driver(dev->driver); - if (!driver->probe || !driver->id_table) + if (!driver->probe) + return -EINVAL; + + /* + * An I2C ID table is not mandatory, if and only if, a suitable Device + * Tree match table entry is supplied for the probing device. + */ + if (!driver->id_table && + !i2c_of_match_device(dev->driver->of_match_table, client)) return -ENODEV; if (client->flags & I2C_CLIENT_WAKE) { |